In the titration between a strong acid and a weak base methyl orange may be suitable as an indicator.
Question
In the titration between a strong acid and a weak base methyl orange may be suitable as an indicator.
Solution
Yes, in a titration between a strong acid and a weak base, methyl orange can be a suitable indicator. This is because methyl orange changes color at a pH of around 3.1 to 4.4, which is within the pH range of the equivalence point in this type of titration.
Here are the steps:
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The titration starts with the addition of a strong acid into the solution containing the weak base.
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As the titration proceeds, the strong acid will react with the weak base, causing the pH of the solution to decrease.
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When the pH of the solution reaches around 4.4, the methyl orange indicator will start to change color, indicating that the equivalence point is being approached.
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The titration is stopped when the methyl orange has completely changed color, indicating that the equivalence point has been reached.
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The volume of the strong acid used in the titration is then used to calculate the concentration of the weak base in the solution.
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